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01 Record

CVE-2021-31354

Junos OS and Junos OS Evolved: A vulnerability in the Juniper Agile License Client may allow an attacker to perform Remote Code Execution (RCE)

HighPUBLISHEDCNA: juniper
CNA base score7.1 CVSS v3.xCVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

02 Description

Junos OS and Junos OS Evolved: A vulnerability in the Juniper Agile License Client may allow an attacker to perform Remote Code Execution (RCE)

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.62% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 50.0% of scored records. A rank, not a probability.
NVD base score
8.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-10-19 18:16Z5 YR AGO
Last updated
2024-09-17 01:30Z2 YR AGO
Reserved
2021-04-15
Assigning CNA
juniper
Record state
PUBLISHED
Severity
High (CVSS 7.1)
CNA CVSS vector
CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L
Weaknesses
Data version
5.1
Document digest
cfae93d9c31f8aff93617584d9120cc70857ebe8f7298230d6f2dd4e01eb115c

05 Affected products

VendorProductVersionsPlatforms
Juniper NetworksJunos OS19.2 to < 19.2R3-S3, 19.3 to < 19.3R3-S3, 20.1 to < 20.1R2-S2, 20.1R3-S1, 20.2 to < 20.2R3-S2, 20.3 to < 20.3R3, 20.4 to < 20.4R3, 21.1 to < 21.1R2—
Juniper NetworksJunos OS Evolved20.1R1-EVO to < unspecified, < 21.2R2-EVO—

06 References

07 Remediation

The following software releases have been updated to resolve this specific issue: Junos OS 19.3R3-S3, 20.1R2-S2, 20.1R3-S1, 20.2R3-S2, 20.3R3, 20.4R3, 21.1R2, 21.2R1, and all subsequent releases. Junos OS Evolved 21.2R2-EVO, 21.3R1-EVO, and all subsequent releases.